Igniter for explosion-engines.



E. BENOIST. IGNITER FOR EXPLOSION ENGINES.

APPLICATION FILED SEPT. 24, 1907.

Patentedept. 15, 1908.

UNITED STATES PATENT OFFICE.

nenni BENois'r, or rAars, FRANCE.

IGNITER FR EXPLOSION-ENGINES.

an improved igniter for explosion engines, in

which the electrodes between which the spark is discharged are supported byva smaliigniter removably arranged in the main body or igniter support intended to be secured tothe engine,l such support being connected with an electrical source as in an ordinary ign-iter, its sole object being to carry the small igniter and to transmit the currentV thereto. By this construction, when for any reason the igniter is toy be changed, only the small removable sparker is replaced, the main body or frame which is screwed on the engine and connected with the electrical source, continuing to be used.

The present invention corresponds to that included in French Letters Patent No. 7546 issued to me August 21st, 1907, the application therefor having been tiled on April 5th, 1907 and said patent is a patent of addition to French Letters Patent No; 370119 issued to Ine on January 29th, 1907 on an application filed on September 29th, 1906.

In the accompanying drawing: Figure 1 shows, in longitudinal section, the complete igniter, that is the combination of the main body or support and ci the small removable igniter, and Fig. 2 shows a part in longitudinal section, the small removable igniter.

The main body cr igniter support consists of a metallic sleeve A provided with a thread a by means oi which the igniter is screwed. on the engine. In the sleeve A is a porcelain member D which bears on a shoulder of such member A and is held in position by a nut B. In the axis of the porcelain member D is located a metallic tube E', held in position by a nut e and, screwed in this tube` is a threaded stem E whose lower end e projects beyond the tube E into the cylindrical cavity of the porcelain member D and whose up per end projects on the outside; on this upper ond of the screw E is formed a seat e2 provided with arms for manipulating the screw, and a nut e3 is screwed above to ailow the electrical connecting wire to be secured, such wire being clamped between the base c2 and the nut e.

'lhe electrodes between which the spark is Specification of Letters Patent.

Applicah'on filed September 24, 1907.

Patented Sept. 15, 1908.

Serial No. 394,334.

discharged are carried on the one hand by a small removable igniter formed by a small metallic tube F, provided at one end with a transverse rod K constituting one of the electrodes, and on the other hand by a small porcelain art G in the center of which is placed a metallic pin H constituting the other electrede. Thel porcelain part G is located intube F with an asbestos ring interposed and restsvon the upper edge oi such tube by a shoulder. The combination of tube F and. oi' part G is inserted in the lower tubulure of body A and is securely held on such body by the lower shoulder f ci the tube fand' by screws J J the ends of which project into the annular recess f provided on the outside of tube F.

The metallic pin H, which forms one oi the electrodes, has on its upper part a head against which is caused to bear the lower end of the ste-m E, when this stem is suitably rotated by means oi the base c2 rovidcd with arms: contact is thus perfect y established and the current brought as has been said, to stem E, thus passes to the lower end h of the electrode H. l

As to the second electrode K, it is connected to the mass by the metallic tube F and the metallic body A which is screwed on the engine.

n will be Observed that with this con! struction, the electrodes propel' are -res cctively made solid with the small porce ain part G and with the small metallic tube lf and they may easily be taken off by unscrcwing the screws J J, and readily cleaned or changed when the electrodos are Jfouled. rThis combination of parts G and F, and of the electrodes li and K, thus forms a real complete little igniter that may be se arated 'from the main body, which is now on y used as a support,` connected with the electrical source as with an ordinary igniter which passes the connection to the small igniter. To allow thc distance between the electrodes to be adjusted,the pin llis threaded throughout its length and receives two nuts 1 and 2 that may be displaced on said pinso as vto clamp it in the porcelain part G in the position corresponding to the required distance between the electrodes.-

llaving now described my invention, what l claim as new and desire to secure by VLetters Patent is:

1. ln a device oi the character described, the combination with a main supporting iiieiiler, 0i :in insuleied stem extending hei'ethi'ougfii7 en auxiliary su @rising n1embe; designee 'te e telescopica ijf, removably Seemed 5o lle izfieiii suppeitiiig membe and iimiieiiig elee'iode, en insulating -iiieifibei' Gentil-@ed within seid euxilieify suplsuepelifting membei comprising e .metelli miie adapted te eleseope with end be seemed iii said mein suppei/mg member, en electrede formed on seid auxiliary sup orting membei', en insulating member Wit 1inv the auxiliary supper ieg member, and' a pin within said insulating membe, said pin contacting ai, one end with said stem and havin? its otherend farmed into en electmde speee 'fi-om seid. first mentioned eieetitede to imm. e spel-ii geg) iiieiebetweeii.

` 3. in e deviee @i the ell-elects? described, @he combination with a. mein supporting member embodying suitebie 'current cendue'ing means, 01 en auxilieiy supporting Amembei, en ii? member designed ie 'be ued in veri-neel exi' A@men supperiiiwmembc mee .s

seeming isi e 'twe'iiiemliei's biode formed. ci the aux' vi OQ member, im seid em and s" J ln if, 1, AL meenemen @melige-e therebetween, and .e duit-ence between seid 1i. in a device ei "alle eiiemee the meti/Lilie eieeve insulating member parti metallic ;1ibe,end e peii @i ele entirely by seid auxiliary electrodes having im extensieii e make electrical Contact iifiili sere-w in iii Witnesses:

ANTOXNE levens] v DEAN M. iAeeN. 

